I REALLY liked this book. It goes beyond just the physical act to which the title refers and discusses every aspect of sexuality, both physically and mentally. The author is so entertaining and I found myself laughing out loud quite often. I think if you've ever had any sort of desire to see what's on the other side, or even if you never have, it's a great book and very eye-opening and informative. I think even heterosexual couples could get a lot from it. And it's nice because her humor and openness throughout make you feel like you're not alone, regardless of where you stand.